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Posted by giuliomagnifico 16 hours ago

EEG shows brain can simultaneous encode two speech streams(journals.plos.org)
240 points | 156 commentspage 2
alexpotato 8 hours ago|
There is an interesting point about this from animation.

Imagine you are seeing a pendulum clock and it makes a "tick" on one extreme and "tock" on the other.

When they first started doing animation + sound they noticed that if you play the "tock" sound at the exact same time the pendulum hit the extreme, people would think it was delayed.

Research showed that humans required a small amount of time to "context switch" from one stimulus to another. I think it's about 1/16th of a second.

Some interesting other observations about time perception here: https://en.wikipedia.org/wiki/Time_perception

NopIdoN 7 hours ago|
But the tick/tock on a real clock happens before the end of the swing anyway
dr_dshiv 14 hours ago||
“Bilocation” was one of the legendary superpowers of Pythagoras (he was miraculously able to lecture in two cities at the same time).

Whenever I’m in multiple conversations at once in a social setting, I think of Pythagoras

bironran 5 hours ago||
Anecdotal:

A long time ago, in my 20's, I found out it's easy for me to think in two streams as long as they operated in different languages. I could talk to my colleagues in Hebrew and answer emails in English at the same time.

Surprisingly, writing and speaking in the same language is not as easy for me. Possible, but requires some mental effort to keep the buffers separated.

mulhoon 11 hours ago||
Anecdotally, I have 3 young kids who sometimes all talk to me at once. It's impossible to process, but with 2, I've noticed it IS kinda possible process.
saidnooneever 11 hours ago||
ask any dj who doesnt use modern sync tools and they will tell u, u can follow 2 entire songs out of sync of eachother fine, it takes practice but your brain can get used to these kinda tasks. (ofc very unscientific here :D)
shtack 11 hours ago|
I’ve actually found that I’m able to process two speech streams and one music stream independently from those. At least for me, music seems to have a dedicated sub-processor of sorts.
adverbly 11 hours ago||
I wonder if parallel processing is related to musical training or ability.

I've always been jealous of people who can play the drums and sing or play piano with both hands and a foot while singing.

davidmurdoch 10 hours ago|
I can do the music part just fine. But listening to two conversations at the same time just means I understand neither of them.
Qem 6 hours ago||
Echoes of the bicameral mind[1]?

[1] https://en.wikipedia.org/wiki/Bicameral_mentality

t23414321 14 hours ago||
Then it is known that if you play to someone with small delay what he says he will be lost on both - so he can't think about and listen to what he is saying if it's not one stream.
cheschire 12 hours ago|
Supported by the empirical evidence of cube farms, post COVID in the early “return to office” days, when office etiquette was completely forgotten and people were listening to all their meetings on speaker, but we were still having all our meetings at our desks.

I would constantly hear people around the cube farm stumbling through sentences because they could hear themselves through a neighbors computer with a slight delay.

runtime_lens 14 hours ago||
This makes me wonder how much of paying attention is really prioritization rather than filtering everything else out. We probably process far more than we're consciously aware of.
Lomlioto 14 hours ago||
I def process more than I want.

Its def a spectrum.

In the easiest look at people like me who complain very quick if something is wrong like to warm to cold to sweaty etc. and others not even ackknowliding it at all

noelwelsh 14 hours ago|||
Absolutely. Take a look at "unconscious perception".
londons_explore 14 hours ago|
Listening to two talkers at a time is certainly doable...

As is talking whilst listening to another conversation - eg. Giving a lecture whilst eves dropping on the people talking at the back of the lecture theatre.

However, having a two way conversation with one person whilst listening to another is really hard.

Not sure why.

MomsAVoxell 13 hours ago||
I'm a native English speaking pinball freak living as an expat in a German-speaking country, and I find myself often listening to English speakers on the train, while also carrying on a conversation in German .. and I have observed that the same part of my mind that can handle multi ball-pinball events, where during a pinball session multiple balls are in play, 'feels' active.

Its a kind of context juggling mechanism in both cases, and it feels like the same mental muscle being exercised in both cases.

I wonder if there is a worthwhile experiment to be conducted wherein an EEG'ed pinball player gets to play pinball with easy multi ball targets, while also listening to German and English speakers, and then passing a test at the end of it .. because I sure have been preparing for that kind of scenario lately ..

gleenn 14 hours ago|||
Listening and responding are likely pretty different mental activities
taneq 13 hours ago||
You're using one of the streams for yourself. :P
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